Remove dead code found by Scythe.

core/src/fpdfapi/fpdf_render/render_int.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
 #define CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
 
 #include <map>
@@ skipping 235 matching lines @@
     CPDF_ImageLoader    m_Loader;
     const CFX_DIBSource*                m_pDIBSource;
     CFX_DIBitmap*               m_pClone;
     int                                 m_BitmapAlpha;
     FX_BOOL                             m_bPatternColor;
     CPDF_Pattern*               m_pPattern;
     FX_ARGB                             m_FillArgb;
     FX_DWORD                    m_Flags;
     CPDF_QuickStretcher*        m_pQuickStretcher;
     CFX_ImageTransformer*       m_pTransformer;
-    CPDF_ImageRenderer* m_pRenderer2;
     void*                       m_DeviceHandle;
     void*           m_LoadHandle;
     FX_BOOL                             m_bStdCS;
     int                                 m_BlendType;
     FX_BOOL                             StartBitmapAlpha();
     FX_BOOL                             StartDIBSource();
     FX_BOOL                             StartRenderDIBSource();
     FX_BOOL                             StartLoadDIBSource();
     FX_BOOL                             DrawMaskedImage();
     FX_BOOL                             DrawPatternImage(const CFX_Matrix* pObj2Device);
@@ skipping 200 matching lines @@
     const uint8_t*                              m_RampG;
     const uint8_t*                              m_RampB;
 };
 struct _CPDF_UniqueKeyGen {
     void                Generate(int count, ...);
     FX_CHAR             m_Key[128];
     int                 m_KeyLen;
 };
 
 #endif  // CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_